Further information for Digium 1S400MF - quad FXS module TDM2400B TDM800P cards
Suitable Quad FXS module for TDM2400, AEX2400, TDM800, AEX800, HA8 and HB8 cards, and up to six modules can be installed on a 24-port and up to two modules on an 8-port card, mixed assembly with FXO and BRI modules feasible